Who contributed to Vue.js on June 19, 2026?

4 developers shipped this update, including chatman-media, dennybiasiolli, bartlomieju, and renovate[bot].

What were the notable Vue.js updates?

fix(hmr): preserve runtime-added properties of setup store refs, docs: clarify `stubActions` limitations in Setup stores, and feat: diagnostic on invalid properties when doing storeToRefs.

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The Wire · Showcase

PINIA SETUP STORES GET HMR FIX AND TEST DIAGNOSTICS

By RepoJournal · Filed 06:01 UTC on June 19, 2026 · About Vue.js

4 people shipped this

chatman-media @chatman-media 1 cited

dennybiasiolli @dennybiasiolli 1 cited

bartlomieju @bartlomieju 1 cited

renovate[bot] @renovate[bot] 1 cited

Pinia shipped critical fixes for setup stores that were losing runtime-added properties during hot module replacement, while new diagnostics catch common testing mistakes before they ship.

The biggest story is the HMR fix [1] that preserves properties dynamically added to setup store refs after the store initializes. This was breaking real-world patterns where actions set optional fields on state objects. The same PR also documents a longstanding confusion point [2]: `stubActions` can't intercept internal action calls in setup stores because they use closed-over function references instead of routing through the store proxy like Options API stores do. The workaround is straightforward - call actions via `useStore()` inside the store itself to make them interceptable. On the diagnostics front, Pinia added validation that catches invalid properties passed to `storeToRefs` [3] and wrong values configured in plugins [4], surfacing mistakes that would have silently failed in tests or production. Vue Router's docs now list Deno as an install option [5] alongside npm, yarn, pnpm, and bun. Test Utils bumped oxfmt to 0.55.0 [6], a tooling maintenance update with no breaking changes.

Action items

→ Update Pinia to get the HMR fix if you use setup stores with runtime-added properties vuejs/pinia [plan]
→ Review setup store test code and either switch to useStore() for action calls or update test expectations for stubActions vuejs/pinia [plan]
→ Monitor the new diagnostics for storeToRefs and plugin validation in your test suite vuejs/pinia [monitor]

References

[1] fix(hmr): preserve runtime-added properties of setup store refs ↗ vuejs/pinia
[2] docs: clarify `stubActions` limitations in Setup stores ↗ vuejs/pinia
[3] feat: diagnostic on invalid properties when doing storeToRefs vuejs/pinia
[4] feat: diagnostic wrong values in plugins vuejs/pinia
[5] docs: add Deno to install instructions ↗ vuejs/router
[6] chore(deps): update dependency oxfmt to v0.55.0 ↗ vuejs/test-utils

Quick answers

What shipped in Vue.js on June 19, 2026?: Pinia shipped critical fixes for setup stores that were losing runtime-added properties during hot module replacement, while new diagnostics catch common testing mistakes before they ship. In total, 8 commits and 6 pull requests landed.
Who contributed to Vue.js on June 19, 2026?: 4 developers shipped this update, including chatman-media, dennybiasiolli, bartlomieju, and renovate[bot].
What were the notable Vue.js updates?: fix(hmr): preserve runtime-added properties of setup store refs, docs: clarify `stubActions` limitations in Setup stores, and feat: diagnostic on invalid properties when doing storeToRefs.

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